/Engine/Source/Runtime/Engine/Classes/Engine/InstancedStaticMesh.h
Structure that maps a component to it's lighting/instancing specific data which must be the same between all instances that are bound to that component.
struct FComponentInstanceSharingData
UInstancedStati...
Component
The component that is associated (owns) this data
UTexture*
LightMapTexture
Light map texture
UTexture*
ShadowMapTexture
Shadow map texture (or NULL if no shadow map)